Air-gap Electrical Windings for Light-weighting of Future Electric Propulsion Systems.

用于减轻未来电力推进系统重量的气隙电力绕组。

• 批准号: 2214811
• 金额: --
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2214811
• 关键词: Air; gap; Electrical; Windings; Light

Future electric propulsion systems in aircraft must meet ambitious power density targets to drive the adoption of hybrid- and all-electric air-transport. The Aerospace Technology Institute technology roadmap seeks electrical machines achieving 20kW/kg by 2035 in stark contrast to the 3kW/kg available today. With improvements in permanent magnet technology and the potential for superconducting electrical conductors, the magnetic field strength within future electrical machines may exceed that of the saturation flux density of the most capable electrical steels. Hence, light-weight electrical machine topologies with air-gap windings and minimal electrical steel become increasingly attractive, however, the air-gap winding must be designed to provide the reaction torque which would conventionally be borne by electrical steel teeth. As such, this project focuses on the design, implementation and experimental test of composite electrical machine windings which incorporate structural elements such as glass- and carbon- fibre along with electrical conductors to yield a mechanically robust, highly electrically conductive winding. The primary challenges are the winding/weaving of such a component along with the thermal management of the DC Joule and AC losses exhibited by the conductors.

未来飞机中的电力推进系统必须满足雄心勃勃的功率密度目标，以推动混合动力和全电动航空运输的采用。航空航天技术研究所的技术路线图寻求到2035年实现20 kW/kg的电机，与目前的3 kW/kg形成鲜明对比。随着永磁体技术的改进和超导电导体的潜力，未来电机内的磁场强度可能超过最有能力的电工钢的饱和磁通密度。因此，具有气隙绕组和最小电工钢的轻质电机拓扑变得越来越有吸引力，然而，气隙绕组必须被设计成提供通常由电工钢齿承受的反作用扭矩。因此，该项目的重点是设计，实施和实验测试的复合电机绕组，其中包括结构元件，如玻璃纤维和碳纤维沿着与电导体，以产生一个机械鲁棒性，高导电绕组。主要的挑战是这种部件的缠绕/编织沿着导体表现出的DC焦耳和AC损耗的热管理。